Months after getting a ceramic hip replacement, some patients may be startled to find their artificial joint starts squeaking. Not everyone who gets a ceramic fitting will end up getting one that ...

Basketball shoes on a gym floor, bicycle brakes in need of a tune-up, or the squeal of tires are everyday examples of squeaking sounds. Such sounds have long been attributed to stick-slip friction, or ...

When shoes slide across a floor, wave-like deformations of the sole can generate squeaking. The pitch of the squeak depends on the rate at which deformations are generated. Bart Weber is at the ...